Revenue from Contracts with Customers - Disaggregated Revenue (Details) - USD ($) $ in Millions	3 Months Ended				6 Months Ended				12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022		Jun. 30, 2021	Jun. 30, 2023	Jun. 30, 2022		Jun. 30, 2021	Dec. 31, 2022	Dec. 31, 2021
Revenue disaggregated by segment
Total revenues	$ 4,007	$ 3,489	[1]	$ 3,397	$ 7,852	$ 7,116	[1]	$ 6,743	$ 14,334	$ 13,389
Banking and deposit interest expense	(131)	(3)	[1]		(234)	(5)	[1]
Total net revenues	3,876	3,486	[1]	3,395	7,618	7,111	[1]	6,736	14,258	13,377
Management and financial advice fees
Revenue disaggregated by segment
Revenue from contracts with customers	2,199	2,277	[1]		4,336	4,736	[1]
Distribution fees
Revenue disaggregated by segment
Revenue from contracts with customers	482	459	[1]	$ 452	999	905	[1]	$ 910	$ 1,939	$ 1,828
Advice & Wealth Management
Revenue disaggregated by segment
Total net revenues	2,132	1,835			4,196	3,649
Asset Management
Revenue disaggregated by segment
Total net revenues	789	870			1,571	1,875
Retirement & Protection Solutions
Revenue disaggregated by segment
Total net revenues	754	655			1,476	1,311
Corporate & Other
Revenue disaggregated by segment
Total net revenues	151	119			281	235
Intersegment eliminations
Revenue disaggregated by segment
Total net revenues	(331)	(337)			(647)	(689)
Intersegment eliminations | Advice & Wealth Management
Revenue disaggregated by segment
Total net revenues	(211)	(221)			(412)	(449)
Intersegment eliminations | Asset Management
Revenue disaggregated by segment
Total net revenues	(19)	(11)			(36)	(23)
Intersegment eliminations | Retirement & Protection Solutions
Revenue disaggregated by segment
Total net revenues	(104)	(105)			(206)	(217)
Intersegment eliminations | Corporate & Other
Revenue disaggregated by segment
Total net revenues	3	0			7	0
Reportable segments
Revenue disaggregated by segment
Revenue from contracts with customers	2,870	2,910			5,700	5,993
Revenue from other sources	1,421	909			2,712	1,771
Total revenues	4,291	3,819			8,412	7,764
Banking and deposit interest expense	(134)	(3)			(241)	(5)
Total net revenues	4,157	3,816			8,171	7,759
Reportable segments | Management and financial advice fees
Revenue disaggregated by segment
Revenue from contracts with customers	2,063	2,125			4,067	4,415
Reportable segments | Asset Management: Retail
Revenue disaggregated by segment
Revenue from contracts with customers	490	543			981	1,187
Reportable segments | Asset Management: Institutional
Revenue disaggregated by segment
Revenue from contracts with customers	157	173			309	368
Reportable segments | Advisory fees
Revenue disaggregated by segment
Revenue from contracts with customers	1,154	1,144			2,263	2,335
Reportable segments | Financial planning fees
Revenue disaggregated by segment
Revenue from contracts with customers	104	99			205	196
Reportable segments | Transaction and other fees
Revenue disaggregated by segment
Revenue from contracts with customers	158	166			309	329
Reportable segments | Distribution fees
Revenue disaggregated by segment
Revenue from contracts with customers	741	730			1,504	1,465
Reportable segments | Mutual funds
Revenue disaggregated by segment
Revenue from contracts with customers	230	244			457	513
Reportable segments | Insurance and annuity
Revenue disaggregated by segment
Revenue from contracts with customers	343	346			672	708
Reportable segments | Off-balance sheet brokerage cash
Revenue disaggregated by segment
Revenue from contracts with customers	84	54			210	70
Reportable segments | Other products
Revenue disaggregated by segment
Revenue from contracts with customers	84	86			165	174
Reportable segments | Other revenues
Revenue disaggregated by segment
Revenue from contracts with customers	66	55			129	113
Reportable segments | Advice & Wealth Management
Revenue disaggregated by segment
Revenue from contracts with customers	1,982	1,936			3,932	3,898
Revenue from other sources	492	123			910	205
Total revenues	2,474	2,059			4,842	4,103
Banking and deposit interest expense	(131)	(3)			(234)	(5)
Total net revenues	2,343	2,056			4,608	4,098
Reportable segments | Advice & Wealth Management | Management and financial advice fees
Revenue disaggregated by segment
Revenue from contracts with customers	1,354	1,340			2,653	2,720
Reportable segments | Advice & Wealth Management | Asset Management: Retail
Revenue disaggregated by segment
Revenue from contracts with customers	0	0			0	0
Reportable segments | Advice & Wealth Management | Asset Management: Institutional
Revenue disaggregated by segment
Revenue from contracts with customers	0	0			0	0
Reportable segments | Advice & Wealth Management | Advisory fees
Revenue disaggregated by segment
Revenue from contracts with customers	1,154	1,144			2,263	2,335
Reportable segments | Advice & Wealth Management | Financial planning fees
Revenue disaggregated by segment
Revenue from contracts with customers	104	99			205	196
Reportable segments | Advice & Wealth Management | Transaction and other fees
Revenue disaggregated by segment
Revenue from contracts with customers	96	97			185	189
Reportable segments | Advice & Wealth Management | Distribution fees
Revenue disaggregated by segment
Revenue from contracts with customers	569	542			1,162	1,071
Reportable segments | Advice & Wealth Management | Mutual funds
Revenue disaggregated by segment
Revenue from contracts with customers	179	186			354	390
Reportable segments | Advice & Wealth Management | Insurance and annuity
Revenue disaggregated by segment
Revenue from contracts with customers	222	216			433	437
Reportable segments | Advice & Wealth Management | Off-balance sheet brokerage cash
Revenue disaggregated by segment
Revenue from contracts with customers	84	54			210	70
Reportable segments | Advice & Wealth Management | Other products
Revenue disaggregated by segment
Revenue from contracts with customers	84	86			165	174
Reportable segments | Advice & Wealth Management | Other revenues
Revenue disaggregated by segment
Revenue from contracts with customers	59	54			117	107
Reportable segments | Asset Management
Revenue disaggregated by segment
Revenue from contracts with customers	792	871			1,578	1,881
Revenue from other sources	16	10			29	17
Total revenues	808	881			1,607	1,898
Banking and deposit interest expense	0	0			0	0
Total net revenues	808	881			1,607	1,898
Reportable segments | Asset Management | Management and financial advice fees
Revenue disaggregated by segment
Revenue from contracts with customers	695	770			1,386	1,664
Reportable segments | Asset Management | Asset Management: Retail
Revenue disaggregated by segment
Revenue from contracts with customers	490	543			981	1,187
Reportable segments | Asset Management | Asset Management: Institutional
Revenue disaggregated by segment
Revenue from contracts with customers	157	173			309	368
Reportable segments | Asset Management | Advisory fees
Revenue disaggregated by segment
Revenue from contracts with customers	0	0			0	0
Reportable segments | Asset Management | Financial planning fees
Revenue disaggregated by segment
Revenue from contracts with customers	0	0			0	0
Reportable segments | Asset Management | Transaction and other fees
Revenue disaggregated by segment
Revenue from contracts with customers	48	54			96	109
Reportable segments | Asset Management | Distribution fees
Revenue disaggregated by segment
Revenue from contracts with customers	90	100			180	211
Reportable segments | Asset Management | Mutual funds
Revenue disaggregated by segment
Revenue from contracts with customers	51	58			103	123
Reportable segments | Asset Management | Insurance and annuity
Revenue disaggregated by segment
Revenue from contracts with customers	39	42			77	88
Reportable segments | Asset Management | Off-balance sheet brokerage cash
Revenue disaggregated by segment
Revenue from contracts with customers	0	0			0	0
Reportable segments | Asset Management | Other products
Revenue disaggregated by segment
Revenue from contracts with customers	0	0			0	0
Reportable segments | Asset Management | Other revenues
Revenue disaggregated by segment
Revenue from contracts with customers	7	1			12	6
Reportable segments | Retirement & Protection Solutions
Revenue disaggregated by segment
Revenue from contracts with customers	96	103			190	214
Revenue from other sources	762	657			1,492	1,314
Total revenues	858	760			1,682	1,528
Banking and deposit interest expense	0	0			0	0
Total net revenues	858	760			1,682	1,528
Reportable segments | Retirement & Protection Solutions | Management and financial advice fees
Revenue disaggregated by segment
Revenue from contracts with customers	14	15			28	31
Reportable segments | Retirement & Protection Solutions | Asset Management: Retail
Revenue disaggregated by segment
Revenue from contracts with customers	0	0			0	0
Reportable segments | Retirement & Protection Solutions | Asset Management: Institutional
Revenue disaggregated by segment
Revenue from contracts with customers	0	0			0	0
Reportable segments | Retirement & Protection Solutions | Advisory fees
Revenue disaggregated by segment
Revenue from contracts with customers	0	0			0	0
Reportable segments | Retirement & Protection Solutions | Financial planning fees
Revenue disaggregated by segment
Revenue from contracts with customers	0	0			0	0
Reportable segments | Retirement & Protection Solutions | Transaction and other fees
Revenue disaggregated by segment
Revenue from contracts with customers	14	15			28	31
Reportable segments | Retirement & Protection Solutions | Distribution fees
Revenue disaggregated by segment
Revenue from contracts with customers	82	88			162	183
Reportable segments | Retirement & Protection Solutions | Mutual funds
Revenue disaggregated by segment
Revenue from contracts with customers	0	0			0	0
Reportable segments | Retirement & Protection Solutions | Insurance and annuity
Revenue disaggregated by segment
Revenue from contracts with customers	82	88			162	183
Reportable segments | Retirement & Protection Solutions | Off-balance sheet brokerage cash
Revenue disaggregated by segment
Revenue from contracts with customers	0	0			0	0
Reportable segments | Retirement & Protection Solutions | Other products
Revenue disaggregated by segment
Revenue from contracts with customers	0	0			0	0
Reportable segments | Retirement & Protection Solutions | Other revenues
Revenue disaggregated by segment
Revenue from contracts with customers	0	0			0	0
Reportable segments | Corporate & Other
Revenue disaggregated by segment
Revenue from contracts with customers	0	0			0	0
Revenue from other sources	151	119			281	235
Total revenues	151	119			281	235
Banking and deposit interest expense	(3)	0			(7)	0
Total net revenues	148	119			274	235
Reportable segments | Corporate & Other | Management and financial advice fees
Revenue disaggregated by segment
Revenue from contracts with customers	0	0			0	0
Reportable segments | Corporate & Other | Asset Management: Retail
Revenue disaggregated by segment
Revenue from contracts with customers	0	0			0	0
Reportable segments | Corporate & Other | Asset Management: Institutional
Revenue disaggregated by segment
Revenue from contracts with customers	0	0			0	0
Reportable segments | Corporate & Other | Advisory fees
Revenue disaggregated by segment
Revenue from contracts with customers	0	0			0	0
Reportable segments | Corporate & Other | Financial planning fees
Revenue disaggregated by segment
Revenue from contracts with customers	0	0			0	0
Reportable segments | Corporate & Other | Transaction and other fees
Revenue disaggregated by segment
Revenue from contracts with customers	0	0			0	0
Reportable segments | Corporate & Other | Distribution fees
Revenue disaggregated by segment
Revenue from contracts with customers	0	0			0	0
Reportable segments | Corporate & Other | Mutual funds
Revenue disaggregated by segment
Revenue from contracts with customers	0	0			0	0
Reportable segments | Corporate & Other | Insurance and annuity
Revenue disaggregated by segment
Revenue from contracts with customers	0	0			0	0
Reportable segments | Corporate & Other | Off-balance sheet brokerage cash
Revenue disaggregated by segment
Revenue from contracts with customers	0	0			0	0
Reportable segments | Corporate & Other | Other products
Revenue disaggregated by segment
Revenue from contracts with customers	0	0			0	0
Reportable segments | Corporate & Other | Other revenues
Revenue disaggregated by segment
Revenue from contracts with customers	0	0			0	0
Non-operating
Revenue disaggregated by segment
Revenue from other sources	53	9			100	46
Total revenues	53	9			100	46
Total net revenues	53	9			100	46
Segment reconciling items
Revenue disaggregated by segment
Total net revenues	50	7			94	41
Eliminations
Revenue disaggregated by segment
Total net revenues	(334)	(339)			(653)	(694)
Total
Revenue disaggregated by segment
Revenue from other sources	1,474	918			2,812	1,817
Total revenues	4,344	3,828			8,512	7,810
Banking and deposit interest expense	(134)	(3)			(241)	(5)
Total net revenues	4,210	3,825			8,271	7,805
Total Segments after intersegment eliminations | Reportable segments
Revenue disaggregated by segment
Total net revenues	3,826	3,479			7,524	7,070
Non-operating | Segment reconciling items
Revenue disaggregated by segment
Total net revenues	46	20			87	37
Non-operating | Eliminations
Revenue disaggregated by segment
Total net revenues	$ (3)	$ (2)			$ (6)	$ (5)

[1] Certain prior period amounts have been restated. See Note 3 for more information.